ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,728,318, issued on Sept. 8, was assigned to SUNNY INDUSTRIAL ENGINEERING Co. LTD (Tuo Yuan City, Taiwan).
"Fin and fin blade" was invented by I Wen Chen (Tuo Yuan City, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A fin blade for free diving or swimming or scuba diving is described, which has a cross section at one end angled about a yaw, or longitudinal, axis relative to the cross section at the other end. The arrangement is such that a lateral line at a proximal end is disposed at an angle relative to a lateral line at a portion spaced from the proximal end. The fin blade is more closely aligned with the ergonomic complexities of the human bo...